8678989840

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{947}}^1\times {\mathrm{1051}}^1$

素因数の和:2120

約数の個数: 80

約数和(自身を含む): 20404676160

約数和(自身を除く): 11725686320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 947, 1051, 1090, 1744, 1894, 2102, 2180, 3788, 4204, 4360, 4735, 5255, 7576, 8408, 8720, 9470, 10510, 15152, 16816, 18940, 21020, 37880, 42040, 75760, 84080, 103223, 114559, 206446, 229118, 412892, 458236, 516115, 572795, 825784, 916472, 995297, 1032230, 1145590, 1651568, 1832944, 1990594, 2064460, 2291180, 3981188, 4128920, 4582360, 4976485, 7962376, 8257840, 9164720, 9952970, 15924752, 19905940, 39811880, 79623760, 108487373, 216974746, 433949492, 542436865, 867898984, 1084873730, 1735797968, 2169747460, 4339494920, 8678989840]

約数ペア:

[(1, 8678989840), (2, 4339494920), (4, 2169747460), (5, 1735797968), (8, 1084873730), (10, 867898984), (16, 542436865), (20, 433949492), (40, 216974746), (80, 108487373), (109, 79623760), (218, 39811880), (436, 19905940), (545, 15924752), (872, 9952970), (947, 9164720), (1051, 8257840), (1090, 7962376), (1744, 4976485), (1894, 4582360), (2102, 4128920), (2180, 3981188), (3788, 2291180), (4204, 2064460), (4360, 1990594), (4735, 1832944), (5255, 1651568), (7576, 1145590), (8408, 1032230), (8720, 995297), (9470, 916472), (10510, 825784), (15152, 572795), (16816, 516115), (18940, 458236), (21020, 412892), (37880, 229118), (42040, 206446), (75760, 114559), (84080, 103223)]